Title

Reactive gold thin films grown on iridium

College

College of Science

Department/Unit

Physics

Document Type

Article

Source Title

Applied Surface Science

Volume

246

Issue

1-3

First Page

68

Last Page

71

Publication Date

6-15-2005

Abstract

We report results of our studies on the dissociative adsorption of hydrogen on Au thin films grown epitaxially on Ir{1 1 1} surface, using nuclear reaction analysis. We found that H 2 dissociatively adsorbs on these Au{1 1 1} films. This feature can be contrasted to the well-known noble bulk Au surfaces, which do not dissociate hydrogen molecules. We attribute this to the local surface properties, e.g., electron localization (the narrowing of the s-band, the s-band center model), which can explain the unexpected high reactivity of a thin Au{1 1 1} film. © 2004 Elsevier B.V. All rights reserved.

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Digitial Object Identifier (DOI)

10.1016/j.apsusc.2004.10.051

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